A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6150-01-318-5770
NSN 6105-01-647-5773
NSN 5950-00-279-7184
NSN 6620-01-492-9508
NSN 5855-00-237-4088
NSN 6135-01-127-0173
NSN 5950-01-539-5378
NSN 5905-01-122-7205
NSN 5985-01-176-1526
NSN 6650-00-269-5000
NSN 6220-01-647-1773
NSN 6610-00-244-6741